Anemia is when the blood is deficient in red blood cells and or its oxygen carrying pigment — hemoglobin. There can be a multitude of causes and classifications of anemia. In some cases the body does not produce enough red blood cells (RBCs) or they are being destroyed too quickly. While some causes are genetically determined, some types of anemia are preventable.
Iron deficiency anemia is one such kind, and the most common. Iron is needed to make hemoglobin, which is a protein in RBCs that carries oxygen. Your body normally gets iron through your diet and by re-using iron from old red blood cells. When iron stores are depleted, hemoglobin production is reduced. Iron can fall short in supply if it is not present in meals; if it is not absorbed from the gut; the body’s demand has increased or there has been significant amount of blood loss, for instance, from worms or ulcers.